/*
 * This file is part of aion-engine <aion-engine.com>
 *
 * aion-engine is private software: you can redistribute it and or modify
 * it under the terms of the GNU Lesser Public License as published by
 * the Private Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * aion-engine is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser Public License
 * along with aion-engine.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.aionengine.gameserver.ai2.handler;

import com.aionengine.gameserver.ai2.AI2Logger;
import com.aionengine.gameserver.ai2.AIState;
import com.aionengine.gameserver.ai2.NpcAI2;
import com.aionengine.gameserver.ai2.manager.EmoteManager;
import com.aionengine.gameserver.ai2.manager.WalkManager;
import com.aionengine.gameserver.model.gameobjects.Npc;
import com.aionengine.gameserver.model.geometry.Point3D;

/**
 * @author ATracer
 */
public class ReturningEventHandler {

    /**
     * @param npcAI
     */
    public static void onNotAtHome(NpcAI2 npcAI) {
        if (npcAI.isLogging()) {
            AI2Logger.info(npcAI, "onNotAtHome");
        }
        if (npcAI.setStateIfNot(AIState.RETURNING)) {
            if (npcAI.isLogging()) {
                AI2Logger.info(npcAI, "returning and restoring");
            }
            EmoteManager.emoteStartReturning(npcAI.getOwner());
        }
        if (npcAI.isInState(AIState.RETURNING)) {
            Npc npc = (Npc) npcAI.getOwner();
            if (npc.hasWalkRoutes()) {
                WalkManager.startWalking(npcAI);
            } else {
                Point3D prevStep = npcAI.getOwner().getMoveController().recallPreviousStep();
                npcAI.getOwner().getMoveController().moveToPoint(prevStep.getX(), prevStep.getY(), prevStep.getZ());
            }
        }
    }

    /**
     * @param npcAI
     */
    public static void onBackHome(NpcAI2 npcAI) {
        if (npcAI.isLogging()) {
            AI2Logger.info(npcAI, "onBackHome");
        }
        npcAI.getOwner().getMoveController().clearBackSteps();
        if (npcAI.setStateIfNot(AIState.IDLE)) {
            EmoteManager.emoteStartIdling(npcAI.getOwner());
            ThinkEventHandler.thinkIdle(npcAI);
        }
        Npc npc = (Npc) npcAI.getOwner();
        npc.getController().onReturnHome();
    }

}
